Ahah! Thanks so much for this, It looks good! I did notice that there was a lot of discussion online regarding pvc pipes and their lack of suitability for heavy weight, there was somewhere that someone was offering to calculate suitability by construction/load... would you mind if I used this picture to refer them to so they could help work out if 42 kg would be too heavy for the pipes if constructed this way?Totally understand though if you'd rather not Thanks again, Gen

Gosh darn it, I'm hoping to build one for my puppy, (42kg rottie/gsd cross with amputated front leg due to bone cancer and who now has extreme hip dysphasia in his rear legs, leaving him with only really one front and back that work) as £500+ isn't affordable on reduced income. However 3d printing is beyond my skills/abilities. I don't suppose there'd be any way you'd recommend/suggest constructing this without the printed components?